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Page  6     SB-2-168-N

Fluid dripping or leaking from 

bottom of cup

Runs and sags

Thin, sandy coarse finish drying 

before it flows out

Thick, dimpled finish "orange peel"

TROUBLESHOOTING (continued)
 CONDITION 

CAUSE 

CORRECTION

Cup loose on gun.

Cup gasket worn or missing below cup.

Cup threads dirty.

Too much material flow.

Material too thin.

Gun tilted on an angle, or gun 

motion too slow.

Gun too far from surface.

Too much air pressure.

Improper thinner being used.

Gun too close to surface.

Air pressure too low.

Improper thinner being used.

Material not properly mixed.

Surface rough, oily, dirty.

Tighten.

Replace cup gasket.

Clean.

Adjust gun or reduce fluid flow.

Mix properly or apply light coats.

Hold gun at right angle to work and 

adapt to proper gun technique.

Check distance. Normally approx. 8".

Reduce air pressure and check spray pattern.

Follow paint manufacturer's mixing instrs. 

Check distance. Normally approx. 8".

Too much material coarsely atomized.

Increase air pressure or reduce fluid flow.

Follow paint manufacturer's mixing instrs. 

Follow paint manufacturer's mixing instrs. 

Properly clean and prepare.

Summary of Contents for GTI SB-2-168-N

Page 1: ...and HC 4719 Other types will not flow enough air for proper gun operation Note If an air adjusting valve is used at the gun inlet use DeVilbiss Model HAV 500 or HAV 511 Some competitive adjusting valv...

Page 2: ...rt 7 Working in cold temperatures CTD s can also be caused by such activities as sewing golf tennis and bowling to name a few Adequate exhaust must be provided to keep air free of accumulations of fla...

Page 3: ...s and packings Note When replacing the fluid tip or fluid needle replace both at the same time Using worn parts can cause fluid leakage See Chart 1 Also replace the needle packing at this time Lightly...

Page 4: ...Ref Replacement Parts No Part No Description Req 20 Air Valve 1 21 Air Valve Body 1 22 U Cup Seal 1 23 Washer 1 24 Snap Ring 1 25 JGS 449 1 Air Valve Assembly 1 26 P MB 51 Air Inlet Nipple 1 1 4 NPS...

Page 5: ...r atomization air Material flow exceeds air cap s capacity Spreader adjustment valve set too low Atomizing pressure too low Material too thick Atomization air pressure too high Fluid flow too low Spre...

Page 6: ...ng used Gun too close to surface Air pressure too low Improper thinner being used Material not properly mixed Surface rough oily dirty Tighten Replace cup gasket Clean Adjust gun or reduce fluid flow...

Page 7: ...e and as a daily quality control measure OMX 70 K48 Paint Cup Liner Kit Consists of 1 Piercing Tool 48 Disposable Liners 48 Drain Bushings Spray Gun Lube SSL 10 2 oz bottle Compatible with all paint m...

Page 8: ...w devilbiss com DeVilbiss Automotive Refinishing DeVilbiss has authorized distributors throughout the world For equipment parts and service check the Yellow Pages under Automotive Body Shop Equipment...

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